import React from 'react'
import Count from './components/Count'
export default class App extends React.Component {
  render() {
    return (
      <div id="app">
        根组件
        <hr />
        {/* 使用一次Count，就相当于是new出来一个Count实例 */}
        <Count></Count>
        <hr />
        {/* <Count></Count> */}
      </div>
    )
  }
}
